<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>  
    <!--卡片视图区域-->
    <el-card>
      <!--搜索与添加区域-->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryParams.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="isDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--用户列表区域-->
      <el-table :data="userList" style="width: 100%" border stripe> 
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">              
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUser(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--分页区域-->
      <div class="block">
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryParams.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryParams.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
      </div>
    </el-card>
    <!--添加用户的对话框-->
    <el-dialog title="添加用户" :visible.sync="isDialogVisible" width="50%" @close='resetDialog'>
      <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="ruleForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="ruleForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="ruleForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="ruleForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="isDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!--修改用户的对话框-->
    <el-dialog title="修改用户" :visible.sync="isDialogVisible2" width="50%" @close='editDialogClose'>
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="isDialogVisible2 = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!--分配角色对话框-->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%">
      <div>
        <p>当前的用户:{{userInfo.username}}</p>
        <p>当前的角色:{{userInfo.role_name}}</p>
        <p>
          分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option v-for="item in rolelist" :key="item.id" :label="item.roleName" :value="item.id"></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  export default{
    data() {
      //自定义邮箱的正则表达式
      const checkEmail = (rule, value, cb) => {
        const regEmail = /^([a-zA-Z0-9])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if(regEmail.test(value)) {
          //合法的邮箱
          cb()
        }
        cb(new Error('请输入合法的邮箱'));
      }
      const checkMobile = (rule, value, cb) => {
        const regMobile = /^(0|86|17957)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if(regMobile.test(value)) {
          //合法的手机号
          cb()
        }
        cb(new Error('请输入合法的手机号'));
      }
      return{
        //请求的参数
        queryParams:{
          query: '',
          //当前页数
          pagenum: 1,
          //一页多少条数据
          pagesize: 2
        },
        userList:[],
        total:0,
        //添加用户的对话框显示与隐藏
        isDialogVisible:false,
        //修改用户的对话框显示与隐藏
        isDialogVisible2: false,
        ruleForm: {
          username:'',
          password: '',
          email: '',
          mobile: ''
        },
        rules: {
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
          ],
          password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
          ],
          email: [
            { required: true, message: '请输入邮箱', trigger: 'blur' },{validator:checkEmail, trigger: 'blur'}
          ],
          mobile: [
            { required: true, message: '请输入手机号码', trigger: 'blur' },{validator:checkMobile}
          ],
        },
        editForm: {},
        editFormRules: {  //修改用户信息的格式规则
          email: [
            { required: true, message: '请输入邮箱', trigger: 'blur' },{validator:checkEmail, trigger: 'blur'}
          ],
          mobile: [
            { required: true, message: '请输入手机号码', trigger: 'blur' },{validator:checkMobile, trigger: 'blur'}
          ],
        },
        //分配角色对话框显示与隐藏
        setRoleDialogVisible: false,
        userInfo: {},
        rolelist: [],
        selectedRoleId: '',  //选中的角色ID值
      }
    },
    created() {
      this.getUserList()
    },
    methods: {
      //获取用户列表数据
      async getUserList() {
        const res = await this.$http.get('users', {params: this.queryParams});
        if(res.data.meta.status !== 200){
          return this.$message.error('获取用户列表失败')
        }
        this.userList = res.data.data.users;
        this.total = res.data.data.total;
      },
      handleCurrentChange(newPageNum) {
        this.queryParams.pagenum = newPageNum;
        this.getUserList();
      },
      handleSizeChange(newPageSize) {
        this.queryParams.pagesize = newPageSize;
        this.getUserList();
      },
      async userStateChange(userInfo) {
                                          //1.3.3更新用户状态
        const res = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`) 
        console.log(res);
        if(res.data.meta.status !== 200){
          userInfo.mg_state = !userInfo.mg_state    //若操作失败，把页面状态也改回来 
          return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功!')
      },
      resetDialog() { //重置添加用户对话框
        this.$refs.ruleForm.resetFields()
      },
      editDialogClose() { //重置对话框
        this.$refs.editFormRef.resetFields()
      },
      addUser() {   //预校验  
        this.$refs.ruleForm.validate(async valid => {
          //预校验成功valid值为true
          if(!valid) return
          //发送添加用户的网络请求
          const res = await this.$http.post('users',this.ruleForm);
          if(res.data.meta.status !== 201) {
            return this.$message.error('添加用户失败!')
          }
          this.$message.success('添加用户成功!');
          this.isDialogVisible = false;   //隐藏添加用户对话框
          this.getUserList();     //重新获取用户列表数据
        })
      },
      async showEditDialog(id) {  //用户id
        this.isDialogVisible2 = true;
        const res = await this.$http.get('users/' + id);
        if(res.data.meta.status !== 200){
          return this.$message.error('查询用户信息失败')
        }
        this.editForm = res.data.data
      },
      editUserInfo(){ //修改用户信息
        this.$refs.editFormRef.validate(async valid => {
          if(!valid) return
          //发起修改用户数据请求
          const res = await this.$http.put('users/' + this.editForm.id,{
            email:this.editForm.email,
            mobile:this.editForm.mobile
          })
          if(res.data.meta.status !== 200) {
            return this.$message.error('更新用户信息失败!')
          }
          this.isDialogVisible2 = false //隐藏对话框
          this.getUserList()  //刷新数据列表
          this.$message.success('更新用户信息成功!');
        })
      },
      async removeUser(id){
        const confimResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',  //如果点击了确定 则返回值是confirm
          cancelButtonText: '取消',   //如果点击了取消 则返回值是cancel
          type: 'warning'
        }).catch(error => error)
        if(confimResult !== 'confirm') return 
        const res = await this.$http.delete('users/' + id)
        if(res.data.meta.status !== 200){
          return this.$message.error('删除用户失败!')
        }
        this.$message.success('删除用户成功')
        this.getUserList()
      },
      async setRole(userInfo) {
        this.userInfo = userInfo;
        //获取所有角色列表
        const res = await this.$http.get('roles')
        if(res.data.meta.status !== 200) {
          return this.$message.error('获取角色列表失败!')
        }
        this.rolelist = res.data.data
        this.setRoleDialogVisible = true;
      },
      async saveRoleInfo() {
        if(!this.selectedRoleId) {
          return this.$message.error('请选择要分配的角色!');
        }
        const res = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
        if(res.data.meta.status !== 200){
          return this.$message.error('更新角色失败!')
        }
        this.$message.success('更新角色成功!');
        this.getUserList()
        this.setRoleDialogVisible = false
      }
    },
  }
</script>

<style scoped>

.el-breadcrumb{
  margin-bottom: 15px;
  font-size: 12px;
}

.el-table{
  margin-top: 15px;
  font-size: 12px;
}

.block{
  margin-top: 15px;
}
</style>